Don’t worry, it’s not about a horror movie. Exploding head syndrome is a moderate psychological condition. Wikipedia article says:
Exploding head syndrome is a rare condition that causes the sufferer to occasionally experience a tremendously loud noise as if from within his or her own head, usually described as an explosion or a roar. This usually occurs within an hour or two of falling asleep, but is not the result of a dream. Although perceived as tremendously loud, the noise is usually not accompanied by pain.
Usually, it’s described as a loud bang, a clash of cymbals or a bomb exploding. The problem is that most of the patients can’t even realize they have exploding head syndrome and won’t go to doctor. But on the other hand, currently there isn’t any efficient treatment. Reducing stress may help; Clomipramine has been used in three patients, who experienced immediate relief from this condition.
It is also important to know if there is something else that is causing the imagined sound. Instead of being exploding head syndrome, it may be a result of one of the following:
- Another sleep disorder
- A medical condition
- Medication use
- A mental health disorder
- Substance abuse
So what can help? If this condition doesn’t disappear, try to help your doctor. Fill out a sleep diary for two weeks so you can ease the work of you doctor as it’ll be possible to retroactively examine your sleeping patterns.
By the way, it can also be connected to migraine as a publication says:
A 26-year-old patient is described with a unique migraine aura. She described an 8-year history of episodes occurring 1 to 2 times yearly of exploding head syndrome followed by sleep paralysis followed by a migraine headache. She also had identical headaches without aura about once per week.